Homework Answers
Solid have definite shape, on the other hand liquid do not have definite shape.
Similarities -
Solid and liquid both have fixed volume
They can not be compressed.
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37. In terms of their bulk properties, how do liquids and solids differ? How are they...
How do the types of motion for solids, liquids, and gases differ?
How do the types of motion for solids, liquids, and gases differ?
What are the differences between liquids and solids? b. What are the differences between liquids and...
What are the differences between liquids and solids? b. What are the differences between liquids and gases? Define briefly: boiling point melting point What is the difference between a nomadic liquid crystal and a sematic A liquid crystal? Ethanol (C_2H_5OH) Delta H_vap =38.56 kJ/mol. Delta H_fus= 5.02kJ/mol, Boiling point = 78degree C, melting point = -114 degree C Specific heat of solid ethanol = 0.97J/g-K, specific heat of liquid ethanol = 2.3J/g-K How much heat does it take to convert...
identifying phase transitions on a heating curve - O GASES, LIQUIDS, AND SOLIDS Identifying phase transitions...
identifying phase transitions on a heating curve
- O GASES, LIQUIDS, AND SOLIDS Identifying phase transitions on a heating curve A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: temperature (°C) heat added (kJ/mol Use this graph to answer the following questions: What is the melting point of X? What phase (physical state) of...
11. Both xenon (Xe) and argon (Ar) are monoatomic noble gases. Watson predicts that Xe is...
11. Both xenon (Xe) and argon (Ar) are monoatomic noble gases. Watson predicts that Xe is a liquid and Ar is a gas at atmospheric pressure and a temperature of 120 K. Crick states that both should be gases. Upon reviewing the literature, it turns out that Watson is correct. Explain why Watson is correct and propose the principles that Crick was using to make his prediction. 5. Given that the boiling point of methanol (CH3OH) is 65°C and methyl...
Paragraph Styles Editing 2 3. Intermolecular forces help dictate various properties of a chemical, draw a...
Paragraph Styles Editing 2 3. Intermolecular forces help dictate various properties of a chemical, draw a representation of a solid, liquid, and gas and describe the intermolecular forces involved. (9 points) 4 Phase Diagrams are useful tools to find if a substance is a gas, liquid, or solid at a certain temperature and pressure. Use the following phase diagram to explain why it takes longer to boil an egg in water at the top of a mountain (hint, what changes...
just do the circle number only Applications 5.91 Would behave more like an ideal gas at...
just do the circle number only
Applications 5.91 Would behave more like an ideal gas at 5 Kor 50 K? Explain your reasoning 5.92 Would CO behave more like an ideal gas at 2 atm or 20 atm? Explain your reasoning. The Liquid State Foundations 5.93 Compare the strength of intermolecular forces in liquids with those in gases 5.94 Compare the strength of intermolecular forces in liquids with those in solids. What is the relationship between the temperature of a...
check each statement about the temperature, check each item that is a unit of pressure, which...
check each statement about the temperature, check each item that is
a unit of pressure, which of the following pairs of substances are
held together by hudrogen bonds, multiple choice, name the phase
16. Check each true statement about the temperature 0 K. The K stands for kilo. The K stands for Kelvin. This is a temperature that is suitable for biological processes. It is absolute zero. This temperature is the middle of the Kelvin scale. This is the coldest...
1. Some solids can be converted directly to the vapor phase by heating. The process is...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
i need all Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as...
i need all
Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as camphor, are purified by warming under vacuum. The solid vaporizes directly, and the vapor crystallizes on a cool surface. What phase changes are involved in the purification of camphor? A) evaporation and freezing B) sublimation and deposition C) sublimation and freezing D) evaporation and deposition Question 2 (1 point) ✓ Saved Consider Cl2, HCI, F2, NaF and HF. Which compound would you expect to...
36. Why must a limiting reagent be used? 37. Gravimetric analysis is a what? 38. Give...
36. Why must a limiting reagent be used? 37. Gravimetric analysis is a what? 38. Give the example of quantitative analysis. EX 739. Define Analytical Chemistry. Ex5 AGO. What is one of the forces of a chemical reaction? 41. What is the concern of quantitative analysis? 42. Why is it more important to use ionic equations although molecular equations can be used for any reaction? 43. True or False. Whether or not a chemical reaction has taken place after mixing...
What are the differences between liquids and solids? b. What are the differences between liquids and gases? Define briefly: boiling point melting point What is the difference between a nomadic liquid crystal and a sematic A liquid crystal? Ethanol (C_2H_5OH) Delta H_vap =38.56 kJ/mol. Delta H_fus= 5.02kJ/mol, Boiling point = 78degree C, melting point = -114 degree C Specific heat of solid ethanol = 0.97J/g-K, specific heat of liquid ethanol = 2.3J/g-K How much heat does it take to convert...
identifying phase transitions on a heating curve
- O GASES, LIQUIDS, AND SOLIDS Identifying phase transitions on a heating curve A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: temperature (°C) heat added (kJ/mol Use this graph to answer the following questions: What is the melting point of X? What phase (physical state) of...
11. Both xenon (Xe) and argon (Ar) are monoatomic noble gases. Watson predicts that Xe is a liquid and Ar is a gas at atmospheric pressure and a temperature of 120 K. Crick states that both should be gases. Upon reviewing the literature, it turns out that Watson is correct. Explain why Watson is correct and propose the principles that Crick was using to make his prediction. 5. Given that the boiling point of methanol (CH3OH) is 65°C and methyl...
Paragraph Styles Editing 2 3. Intermolecular forces help dictate various properties of a chemical, draw a representation of a solid, liquid, and gas and describe the intermolecular forces involved. (9 points) 4 Phase Diagrams are useful tools to find if a substance is a gas, liquid, or solid at a certain temperature and pressure. Use the following phase diagram to explain why it takes longer to boil an egg in water at the top of a mountain (hint, what changes...
just do the circle number only
Applications 5.91 Would behave more like an ideal gas at 5 Kor 50 K? Explain your reasoning 5.92 Would CO behave more like an ideal gas at 2 atm or 20 atm? Explain your reasoning. The Liquid State Foundations 5.93 Compare the strength of intermolecular forces in liquids with those in gases 5.94 Compare the strength of intermolecular forces in liquids with those in solids. What is the relationship between the temperature of a...
check each statement about the temperature, check each item that is
a unit of pressure, which of the following pairs of substances are
held together by hudrogen bonds, multiple choice, name the phase
16. Check each true statement about the temperature 0 K. The K stands for kilo. The K stands for Kelvin. This is a temperature that is suitable for biological processes. It is absolute zero. This temperature is the middle of the Kelvin scale. This is the coldest...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
i need all
Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as camphor, are purified by warming under vacuum. The solid vaporizes directly, and the vapor crystallizes on a cool surface. What phase changes are involved in the purification of camphor? A) evaporation and freezing B) sublimation and deposition C) sublimation and freezing D) evaporation and deposition Question 2 (1 point) ✓ Saved Consider Cl2, HCI, F2, NaF and HF. Which compound would you expect to...
36. Why must a limiting reagent be used? 37. Gravimetric analysis is a what? 38. Give the example of quantitative analysis. EX 739. Define Analytical Chemistry. Ex5 AGO. What is one of the forces of a chemical reaction? 41. What is the concern of quantitative analysis? 42. Why is it more important to use ionic equations although molecular equations can be used for any reaction? 43. True or False. Whether or not a chemical reaction has taken place after mixing...
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